The concept for the next generation of Formula E cars has been largely agreed between stakeholders in the championship and will be introduced by the FIA for the 2022-23 season.
E-racing365 has learned that the Gen 3 powertrain is likely to be built around an increase to a total 450 kW regeneration capability, while electrical brake-by-wire systems will replace mechanical brakes on the rear axle.
Recent discussions at Technical Working Group meetings are also believed to have centered around variations on regeneration on braking to approximately 150 kW on the front and 200-250 kW on the rear.
An ambitious total capability of 600 kW package is also known to have been discussed but this is thought to have been largely dismissed due to a lack of regenerative balance through such a potent powertrain.
These frameworks have been prioritized to incorporate fast charging pit stops from 2022 onwards, something which has been in discussion for over a year.
It is believed that potential fast charging pit stops of around thirty seconds have been simulated with a theoretical total region capability 450 kW technical package.
Another one of the key criteria of the new regulations is containing the cars to be able to race on Grade 2 race tracks in city centers.
The FIA has been conducting detailed simulations of how the next generation of usable energy from a battery could work with more potent motors within a whole powertrain package.
These tests are being carried out at the FIA’s headquarters in Geneva and are informing what size and weight the new battery should be.
The FIA will outline and release its tender confirmations later today at the World Motor Sport Council meeting in Paris for the official Gen 3 chassis, tire and battery partner deals.
Spark Racing Technologies has supplied the chassis through a design partnership with Dallara since the inaugural Formula E season in 2014-15.
The French company is thought to be the overwhelming favorite to again work with the FIA on the third iteration of car.
The battery supply is currently coordinated through McLaren Applied Technologies with technical support via San Francisco-based battery supplier Atieva.
Williams Advanced Engineering, which produced and supplied the Gen 1 battery between 2014 and 2018, is known to be preparing a tender application, while several other companies are expected to submit one in the coming weeks.
Michelin has been a mainstay in the championship since day one and is unlikely to be usurped by a rival tire manufacturer.
The successful tender winners are expected to be made public at the beginning of June 2020.